0.5 BHK stands for 0.5 Bedroom, 1 Hall & 1 Kitchen. It contains a smaller size (generally under the standard size referred by 0.5). Usually, it will be suitable for library or study room size. But, it can also be utilized as bedroom. Presume the 1 BHK Flat layout devoid of the bedroom size will be under the standard size.

1.5 BHK stands for 1.5 Bedroom, 1 Hall & 1 Kitchen. 1.5 signifies 1 bedroom & 1 bedroom (0.5) that is under the standard size. Generally, they will be mentioned as library or study room. They are additional rooms.

2.5 BHK stands for 2.5 Bedroom, 1 Hall & 1 Kitchen. 2.5 signifies 2 bedrooms & 1 bedroom (0.5) that is under the standard size. Generally they will be pointed as library or study room. They are additional rooms equivalent to 1.5 BHK layout but contain one more bedroom.

1 RK stands for 1 Room & 1 Kitchen. The Studio apartments should contain these type of layouts. It comprises of 1 room that is utilized as living room & 1 kitchen